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26479042980 = 22351333947491
BaseRepresentation
bin11000101010010001…
…100010000110100100
32112100100222202100120
4120222101202012210
5413212113333410
620055253441540
71625114103015
oct305221420644
975310882316
1026479042980
11102588029a5
12516b9402b0
13265ca9b890
1413d299300c
15a4e97c570
hex62a4621a4

26479042980 has 48 divisors (see below), whose sum is σ = 79844501184. Its totient is φ = 6517918080.

The previous prime is 26479042973. The next prime is 26479043033. The reversal of 26479042980 is 8924097462.

It is a super-2 number, since 2×264790429802 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16972966 + ... + 16974525.

It is an arithmetic number, because the mean of its divisors is an integer number (1663427108).

Almost surely, 226479042980 is an apocalyptic number.

26479042980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26479042980 is an abundant number, since it is smaller than the sum of its proper divisors (53365458204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26479042980 is a wasteful number, since it uses less digits than its factorization.

26479042980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33947516 (or 33947514 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 26479042980 in words is "twenty-six billion, four hundred seventy-nine million, forty-two thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 33947491 67894982 101842473 135789964 169737455 203684946 339474910 407369892 441317383 509212365 678949820 882634766 1018424730 1323952149 1765269532 2036849460 2206586915 2647904298 4413173830 5295808596 6619760745 8826347660 13239521490 26479042980